? ? Fluorine lined gate valve It is one of the commonly used valves for cutting off or connecting media in pipelines. The flow direction of the media is not restricted, and the flow resistance is small, making opening and closing effortless.
? ? Fluorine lined gate valve The nominal diameter is generally between DN50 and DN600, and the operating temperature varies depending on the lining material, generally ranging from -200 to 180. It has a wide range of applications and stable performance. We need to maintain the fluorine lined gate valve during use.
Maintenance and upkeep of fluorine lined gate valves:
1. It should be stored in a dry and ventilated room, and the valve side flange must be covered and blocked.
2. Valves stored for a long time should be regularly inspected, cleaned of dirt, and coated with rust proof oil on the processing surface.
3. After installation, regular inspections should be conducted on the main inspection items.
a、 Wear condition of sealing surface.
b、 Wear condition of trapezoidal thread on valve stem and valve stem nut.
c、 Whether the packing is ineffective, and if it is damaged, it should be replaced in a timely manner.
d、 Is there any accumulation of dirt between the inner walls of the valve body and valve cover, as well as between the guide surfaces of the gate and valve body.
4. After the maintenance and assembly of the fluorine lined gate valve, a sealing performance test should be conducted, and the situation should be recorded in detail for assessment after each maintenance.